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143242044 = 223111497283
BaseRepresentation
bin10001000100110…
…11001100111100
3100222112110010220
420202123030330
5243132221134
622114101340
73356352201
oct1042331474
9328473126
10143242044
1173946960
123bb7a850
13238a3c0a
1415049ca8
15c897149
hex889b33c

143242044 has 48 divisors (see below), whose sum is σ = 367113600. Its totient is φ = 43109440.

The previous prime is 143242039. The next prime is 143242061. The reversal of 143242044 is 440242341.

It is a happy number.

143242044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16027 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (7648200).

Almost surely, 2143242044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143242044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183556800).

143242044 is an abundant number, since it is smaller than the sum of its proper divisors (223871556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143242044 is a wasteful number, since it uses less digits than its factorization.

143242044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450 (or 7448 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 143242044 is about 11968.3768323027. The cubic root of 143242044 is about 523.2270278708.

Adding to 143242044 its reverse (440242341), we get a palindrome (583484385).

The spelling of 143242044 in words is "one hundred forty-three million, two hundred forty-two thousand, forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 149 298 447 596 894 1639 1788 3278 4917 6556 7283 9834 14566 19668 21849 29132 43698 80113 87396 160226 240339 320452 480678 961356 1085167 2170334 3255501 4340668 6511002 11936837 13022004 23873674 35810511 47747348 71621022 143242044